Re: [PATCH v1 1/1] pinctrl: core: Drop unused include

From: kernel test robot

Date: Sat Mar 21 2026 - 05:56:01 EST


Hi Andy,

kernel test robot noticed the following build errors:

[auto build test ERROR on linusw-pinctrl/devel]
[also build test ERROR on linusw-pinctrl/for-next linus/master v7.0-rc4 next-20260320]
[If your patch is applied to the wrong git tree, kindly drop us a note.
And when submitting patch, we suggest to use '--base' as documented in
https://git-scm.com/docs/git-format-patch#_base_tree_information]

url: https://github.com/intel-lab-lkp/linux/commits/Andy-Shevchenko/pinctrl-core-Drop-unused-include/20260321-095653
base: https://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-pinctrl.git devel
patch link: https://lore.kernel.org/r/20260320220550.3237142-1-andriy.shevchenko%40linux.intel.com
patch subject: [PATCH v1 1/1] pinctrl: core: Drop unused include
config: hexagon-randconfig-001-20260321 (https://download.01.org/0day-ci/archive/20260321/202603211748.5YfMNVO3-lkp@xxxxxxxxx/config)
compiler: clang version 23.0.0git (https://github.com/llvm/llvm-project 4abb927bacf37f18f6359a41639a6d1b3bffffb5)
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20260321/202603211748.5YfMNVO3-lkp@xxxxxxxxx/reproduce)

If you fix the issue in a separate patch/commit (i.e. not just a new version of
the same patch/commit), kindly add following tags
| Reported-by: kernel test robot <lkp@xxxxxxxxx>
| Closes: https://lore.kernel.org/oe-kbuild-all/202603211748.5YfMNVO3-lkp@xxxxxxxxx/

All errors (new ones prefixed by >>):

>> drivers/pinctrl/core.c:1742:32: error: call to undeclared function 'gpio_to_desc'; ISO C99 and later do not support implicit function declarations [-Wimplicit-function-declaration]
1742 | gdev = gpiod_to_gpio_device(gpio_to_desc(gpio_num));
| ^
>> drivers/pinctrl/core.c:1742:32: error: incompatible integer to pointer conversion passing 'int' to parameter of type 'struct gpio_desc *' [-Wint-conversion]
1742 | gdev = gpiod_to_gpio_device(gpio_to_desc(gpio_num));
| ^~~~~~~~~~~~~~~~~~~~~~
include/linux/gpio/driver.h:817:60: note: passing argument to parameter 'desc' here
817 | struct gpio_device *gpiod_to_gpio_device(struct gpio_desc *desc);
| ^
2 errors generated.


vim +/gpio_to_desc +1742 drivers/pinctrl/core.c

2744e8afb3b763 Linus Walleij 2011-05-02 1700
2744e8afb3b763 Linus Walleij 2011-05-02 1701 seq_printf(s, "registered pins: %d\n", pctldev->desc->npins);
2744e8afb3b763 Linus Walleij 2011-05-02 1702
42fed7ba44e4e8 Patrice Chotard 2013-04-11 1703 mutex_lock(&pctldev->mutex);
57b676f9c1b7cd Stephen Warren 2012-03-02 1704
706e8520e8450a Chanho Park 2012-01-03 1705 /* The pin number can be retrived from the pin controller descriptor */
706e8520e8450a Chanho Park 2012-01-03 1706 for (i = 0; i < pctldev->desc->npins; i++) {
2744e8afb3b763 Linus Walleij 2011-05-02 1707 struct pin_desc *desc;
2744e8afb3b763 Linus Walleij 2011-05-02 1708
706e8520e8450a Chanho Park 2012-01-03 1709 pin = pctldev->desc->pins[i].number;
2744e8afb3b763 Linus Walleij 2011-05-02 1710 desc = pin_desc_get(pctldev, pin);
2744e8afb3b763 Linus Walleij 2011-05-02 1711 /* Pin space may be sparse */
cea234e996922d Markus Elfring 2017-05-02 1712 if (!desc)
2744e8afb3b763 Linus Walleij 2011-05-02 1713 continue;
2744e8afb3b763 Linus Walleij 2011-05-02 1714
cf9d994dcf00c0 Masahiro Yamada 2016-05-24 1715 seq_printf(s, "pin %d (%s) ", pin, desc->name);
2744e8afb3b763 Linus Walleij 2011-05-02 1716
f1b206cf7c5756 Drew Fustini 2020-07-22 1717 #ifdef CONFIG_GPIOLIB
9dfbcf2fc566c0 Léo DUBOIN 2024-04-25 1718 gdev = NULL;
482715ff0601c8 Andy Shevchenko 2021-04-15 1719 gpio_num = -1;
f1b206cf7c5756 Drew Fustini 2020-07-22 1720 list_for_each_entry(range, &pctldev->gpio_ranges, node) {
db5032981ab37e Léo DUBOIN 2024-04-25 1721 if (range->pins != NULL) {
db5032981ab37e Léo DUBOIN 2024-04-25 1722 for (int i = 0; i < range->npins; ++i) {
db5032981ab37e Léo DUBOIN 2024-04-25 1723 if (range->pins[i] == pin) {
db5032981ab37e Léo DUBOIN 2024-04-25 1724 gpio_num = range->base + i;
f1b206cf7c5756 Drew Fustini 2020-07-22 1725 break;
f1b206cf7c5756 Drew Fustini 2020-07-22 1726 }
f1b206cf7c5756 Drew Fustini 2020-07-22 1727 }
db5032981ab37e Léo DUBOIN 2024-04-25 1728 } else if ((pin >= range->pin_base) &&
db5032981ab37e Léo DUBOIN 2024-04-25 1729 (pin < (range->pin_base + range->npins))) {
db5032981ab37e Léo DUBOIN 2024-04-25 1730 gpio_num =
db5032981ab37e Léo DUBOIN 2024-04-25 1731 range->base + (pin - range->pin_base);
db5032981ab37e Léo DUBOIN 2024-04-25 1732 }
db5032981ab37e Léo DUBOIN 2024-04-25 1733 if (gpio_num != -1)
db5032981ab37e Léo DUBOIN 2024-04-25 1734 break;
db5032981ab37e Léo DUBOIN 2024-04-25 1735 }
482715ff0601c8 Andy Shevchenko 2021-04-15 1736 if (gpio_num >= 0)
e3863fa123c8fd Linus Walleij 2023-01-20 1737 /*
e3863fa123c8fd Linus Walleij 2023-01-20 1738 * FIXME: gpio_num comes from the global GPIO numberspace.
e3863fa123c8fd Linus Walleij 2023-01-20 1739 * we need to get rid of the range->base eventually and
e3863fa123c8fd Linus Walleij 2023-01-20 1740 * get the descriptor directly from the gpio_chip.
e3863fa123c8fd Linus Walleij 2023-01-20 1741 */
524fc108b89586 Bartosz Golaszewski 2023-11-15 @1742 gdev = gpiod_to_gpio_device(gpio_to_desc(gpio_num));
524fc108b89586 Bartosz Golaszewski 2023-11-15 1743 if (gdev)
524fc108b89586 Bartosz Golaszewski 2023-11-15 1744 seq_printf(s, "%u:%s ",
524fc108b89586 Bartosz Golaszewski 2023-11-15 1745 gpio_num - gpio_device_get_base(gdev),
524fc108b89586 Bartosz Golaszewski 2023-11-15 1746 gpio_device_get_label(gdev));
f1b206cf7c5756 Drew Fustini 2020-07-22 1747 else
f1b206cf7c5756 Drew Fustini 2020-07-22 1748 seq_puts(s, "0:? ");
f1b206cf7c5756 Drew Fustini 2020-07-22 1749 #endif
f1b206cf7c5756 Drew Fustini 2020-07-22 1750
2744e8afb3b763 Linus Walleij 2011-05-02 1751 /* Driver-specific info per pin */
2744e8afb3b763 Linus Walleij 2011-05-02 1752 if (ops->pin_dbg_show)
2744e8afb3b763 Linus Walleij 2011-05-02 1753 ops->pin_dbg_show(pctldev, s, pin);
2744e8afb3b763 Linus Walleij 2011-05-02 1754
2744e8afb3b763 Linus Walleij 2011-05-02 1755 seq_puts(s, "\n");
2744e8afb3b763 Linus Walleij 2011-05-02 1756 }
2744e8afb3b763 Linus Walleij 2011-05-02 1757
42fed7ba44e4e8 Patrice Chotard 2013-04-11 1758 mutex_unlock(&pctldev->mutex);
57b676f9c1b7cd Stephen Warren 2012-03-02 1759
2744e8afb3b763 Linus Walleij 2011-05-02 1760 return 0;
2744e8afb3b763 Linus Walleij 2011-05-02 1761 }
b5520891a3491c Andy Shevchenko 2018-02-17 1762 DEFINE_SHOW_ATTRIBUTE(pinctrl_pins);
2744e8afb3b763 Linus Walleij 2011-05-02 1763

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